Zoe's Simple Machine

NAME OF MODEL: Bubble erase.

IDEA OF MODEL: This machine will be a circular eraser, of which is attached to it is a bubble blower. So when you erase something on your work you can blow bubbles at the same time!

MATERIALS:

• 1 circular eraser.
• 1 top of a bubble blower.
• 1 screw.
• Soapy water.
• Glue

INSTRUCTIONS:

1. Collect the eraser.
2. Drill mid way through the eraser.
3. Collect the screw.
4. Apply glue to the top of the screw.
5. Get the top of the bubble blower.
6. Stick the bubble attachment to the glue on the screw.
7. Wind in the screw, and glue the sides to prevent it from falling out in use.
8. Wait for the glue to dry.
9. Create the bubble mixture by mixing soap and water.

Then finally dip the bubble attachment into the soapy water and erase something. Then watch the bubbles come out!

FORCES ACTING ON MACHINE:

• Gravity pushing down on the machine.
• Friction between the paper and the eraser.
• Transform of wind to motion.